What evidence do employees need to sue the company?

Legal analysis: If the evidence involves audio-visual materials such as audio-visual evidence, in addition to CD-ROM, written materials of audio recording should be submitted, which should be truthfully recorded according to the recording situation, indicating the basic elements such as the situation of the parties and the recording time.

Legal basis: Article 30 of the Labor Law of People's Republic of China (PRC). If the employer terminates the labor contract and the trade union considers it inappropriate, it has the right to put forward opinions. If the employing unit violates laws, regulations or labor contracts, the trade union has the right to request re-handling; If a laborer applies for arbitration or brings a lawsuit, the trade union shall give support and help according to law.